Giro Syntax Mips Helmet - Matte Flame Red new in Optimus XC has a single

Optimus XC has a single ply 120tpi casing with tubeless insert for ultimate suppleness and dependable air retention

and Reserve Turbulent Aero 42/49 rims laced to DT Swiss 180 hubs with SINC ceramic bearings

The tire jumps onto the rim faster and when the pump head is removed

000 mile turbo trainer ride over ten days

Giro Syntax Mips Helmet - Matte Flame Red new in Optimus XC has a singleThe Syntax Mips combines a touch of European flair with slightly deeper coverage and high performance features all tucked into a very slim design. The fit is luxurious and secure, thanks to our highly adjustable Roc Loc 5 Air Mips system that allows you to customize fit and feel for great stability and long range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The outer shell is molded